Smoke-consuming apparatus for furnaces or boilers.



No. 731,015. PATENIED JUNE 16, 1903.

G. G. BRAGKLOWyH. G. E. TIMM & H. BUNZ.

SMOKE CONSUMING APPARATUS FOR FURNACES OR BOILERS.

' APPLICATION FILED mm: 23. 1902.

N0 MODEL.

1n: NORRIS vzrsns co. vnorcuumo, wnsumawn, n. c.

Patented June 16, 1903.

UNITED STATES" PATENT 1 OFFICE.

CARL GEORG BRACKI OW, HERMANN GUSTAV EUGEN TIMM, AND HEINRICH BUNZ, OF NEUMINSTER, GERMANY.

SMOKE-CONSUMING APPARATUS F O R FURNACES OR BOILERS.

SPECIFICATION forming part of Letters Patent N 0. 731,015, dated June 16, 1903.

Application filed June 23, 1902. Serial No. 112,943. (N model.)

To all whom, it may concern:

Be it known that we, CARL GEoRe BRACK- Low, HERMANN GUSTAV EUGEN TIMM, and HEINRICH BiiNZ, subjects of the German Emperor, residing at Neuminster, Holstein, Ger: many, have invented certain new and useful Improvements in Smoke-Consumin Appa ratus for Boilers or Furnaces, of which the following is a specification.

The present invention relates to a smokeconsuming apparatus for furnaces or boilers.

In the annexed drawings, Figure 1 is a longitudinal section illustrating the arrangement of the apparatus in the flame-tube of a steam- I5 boiler. Fig. 2 is a rear View of the apparatus with the damper omitted, and Fig. 3 is a plan view of the apparatus in section on the line 00 0c of Fig. 1.

The apparatus consists in the main of the hollow hood I), which rests on a base-plate a and serves at the same time as a fire-bridge. This hood is open at the rear and is adapted to be closed by a damper (I, pivoted to said base-plate and operated by means of a rod 0 2 5 brought to the front or foot plate. The characteristic feature of the apparatus is that the,

outflow of heated air from the apparatus, and not, as was hitherto almost universally usual, the supply of fresh air to the-latter, is regue 3o lated at will.

The hollow hood or bridge I) and damper d are provided with several intermeshing ribs" e, by which the cold air entering freely at'the bottom and impinging on them is heated, while at the inner edge of the hood, which edge is divided into small recesses,- a perfo-' rated steam-pipe g is provided, from the per forations t of which (each of which leads to return of the fresh air to the apparatus is avoided.

By the jet-like continuous action of the steam uponthe simultaneous outflowing hot air a gaseous mixture is produced which effects the energetic and complete combustion of all the combustible residue contained in the departing motor-gases, so that the latter actually leave the uptake free from smoke.

IVe declare that What we claim is- 1. In smoke-consuming apparatus for boilers and furnaces, the combination of a hood open at the rear, and adapted to serve as a fire-bridge, a damper adaptedto close said hood, means foroperating said damper, and a plurality of intermeshing ribs on said hood and damper respectively, substantially as described for the purpose set forth;

; 2. In smoke-consuming apparatus for boilers and furnaces, the combination of a hood open at the rear, and adapted to serve as a firebridge, a pivoted damper adapted to close said hood, means for operating said damper from the front of the boiler or furnace, and a plurality of intermeshing ribs on said hood and damper respectively, substantially as described for the purpose set forth.

j In smoke-consuming apparatus for boilers and furnaces, the combination of a hood open at the rear and adapted to serve as a fire- 8o bridge, a damper adapted to close said hood, means for operating said damper, a plurality of intermeshing ribs on said hood and damper respectively, and means for admittance of steam to said hood for moistening the outflowing air and accelerating its speed substantially as described. 7

a. In smoke-consuming apparatus forboilers and furnaces, the combination of a hood open at the rear, and adapted to serve as a fire- 9c bridge, the edge of said hood having a number of recesses, a damper adapted to close said hood, means for operating said damper, a plurality of intermeshing ribs on said hood and damper respectively and a perforated steam- 5 pipe adjacent the edge of the hood, the perforations in said pipe being each opposite one of said recesses, substantially as described for the purpose set forth.

5. In smoke-consuming apparatus for boil- I00 ers and furnaces, the combination of a hood the said recesses, substantially as described open at the rear and adapted to serve as a firefor the purpose set forth. v

bridge, the edge of said hood having a number In Witness whereof we have signed this of recesses, a pivoted'damper adapted to close specification in the presence of two witnesses.

5 said hood, means for operating said damper CARL GEORG BRAOKLOW. I 5

from the front of the boiler or furnace, a plu- HERMANN GPSTAV EUGEN TIMM. rality of intermeshing ribs on said hood and HEINR'GH BUNZ. damper respectively, and a perforated steam- Vitnesses: pipe adjacent the edge of the hood, the per-f0 F. ()HMSTEDE,

lo rations in said pipe being each opposite one of E. H. L. MUMMENHOFF. 

